83078761291 has 8 divisors (see below), whose sum is σ = 85115180304. Its totient is φ = 81042823680.

The previous prime is 83078761289. The next prime is 83078761309. The reversal of 83078761291 is 19216787038.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 83078761291 - 2¹ = 83078761289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83078768291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242256 + ... + 474178.

It is an arithmetic number, because the mean of its divisors is an integer number (10639397538).

Almost surely, 2^83078761291 is an apocalyptic number.

83078761291 is a deficient number, since it is larger than the sum of its proper divisors (2036419013).

83078761291 is a wasteful number, since it uses less digits than its factorization.

83078761291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240701.

The product of its (nonzero) digits is 1016064, while the sum is 52.

The spelling of 83078761291 in words is "eighty-three billion, seventy-eight million, seven hundred sixty-one thousand, two hundred ninety-one".